Add Data.Bits instance for Bool
Given the common use cases for Data.Bits, it seems strange that there is no instance for Bool. Previously, the Num superclass was a reason not to include one, as there are valid objections to a Num Bool instance. However, this superclass requirement has now been removed, so I think adding a Bits Bool instance would be a good idea.
I have attached a local implementation which I am using, but it may not entirely match the intended semantics of Bits.